similar to: Multithread support

Hi, thanks for some On Wed, Feb 4, 2015 at 5:17 AM, Timothy B. Terriberry <tterribe at vt.edu> wrote: I don't believe anyone has been working on this for some years. There are > two basic approaches. > > One is threading within a single frame, which does not require any API > behavior changes. In theory you can scale to a fairly decent number of > threads everywhere

M. Pabis wrote: > If the multithreading encoding was dropped out, may I ask why? IIRC, the commits from 2007 only threaded the motion search, and gave gains of only 10 to 20%. However, as part of the work to improve the Theora encoder quality for the HTML5 video tag, the way this search was done was completely rewritten, and we got significantly more than 10 to 20% speed-ups just by having

Am 04.02.2015 um 12:31 schrieb Timothy B. Terriberry: > M. Pabis wrote: >> 1. Each thread deals with frames from intra frame up to next intra frame >> - 1; > > This works if you know where the intra frames are. Could this information be gathered by having one thread encode a downsampled version of the input video sequence, or would this be a bad predictor? Who knows,

M. Pabis wrote: > 1. Each thread deals with frames from intra frame up to next intra frame > - 1; This works if you know where the intra frames are. Currently the frame type decision is made by trying to encode as an inter frame, and keeping statistics on expect rate and distortion from using all intra modes during mode decision. Then if it looks like an all-intra frame is likely to be

Keir: This is to to make the IDE device model multithreading so that the VMX domain IO access completion (triggering DMA operation) can be asynchronize with the completion of DMA operation. With this patch we get 8%--14% performance gain for kernel build. Thanks, eddie Yang, Xiaowei wrote: > Originally in qemu when a IDE dma transfer is started which is > triggered by access to 0xc000

Hi All, I have looked through the following thread: http://tolstoy.newcastle.edu.au/R/help/02b/4551.html and would like to ask after 1.5 year the same question: Are there any plans to involve multithread computations in R? Few word about my motivation: I use R on my OpenSSI cluster with 7 CPUs, so one could simply think of this cluster as of single computer with 7 CPU. My

Hi , I see in the libtheora 1.0 beta3 changelog that included new libtheoradec and libtheoraenc libraries supporting the new API from theora-exp , that it means that have multithread encoder? _________________________________________________________________ Express yourself instantly with MSN Messenger! Download today it's FREE! http://messenger.msn.click-url.com/go/onm00200471ave/direct/01/

We try to use llvm to translate and generate the native code in parallel with multi-thread. But some various bugs will be triggered. We run the following code in multithread environment: ################## BasicBlock::Create(_CTX(), "dispatch", cpu->cur_func, 0); BranchInst::Create(bb_start, label_entry); cpu->exec_engine->getPointerToFunction ##################3 And cpu

Quick related Q: Does the global lock of the JIT during code generation prevent concurrent execution of already JIT-ted code? Thanks. On Jan 12, 2009, at 9:34 AM, Gordon Henriksen wrote: > On Jan 12, 2009, at 11:10, Edgar Geisler wrote: > >> my goal is to create a service with multiple threads, each of them >> generating IR code and JIT'ing/executing it in their threads

Dose anyone know if R can handle multithread processing? Regards, Harvey -.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.- r-help mailing list -- Read http://www.ci.tuwien.ac.at/~hornik/R/R-FAQ.html Send "info", "help", or "[un]subscribe" (in the "body", not the subject !) To: r-help-request at stat.math.ethz.ch

hi, i have queries regarding openssh. 1. Openssh code is not multithread safe. scenario : - using solaris 8 for compilation & running application. - at many places fork & exec* functions are used along with other non multithread safe functions. - I have created a shared library of openssh & using it in other process - when i want to sftp

hi, Why xapian don't support memory index/search ? I know there is a method can create memory datebase, like this: Xapian::WritableDatabase db(Xapian::InMemory::open()); *But, if i use these in multithread program, i need create many datebases!!* Xapian::WritableDatabase db1(Xapian::InMemory::open()); //used in thread1 Xapian::WritableDatabase db2(Xapian::InMemory::open()); //used in

https://bugzilla.mindrot.org/show_bug.cgi?id=1477 Summary: ssh-keygen not reading stdin as expected Classification: Unclassified Product: Portable OpenSSH Version: 4.7p1 Platform: ix86 OS/Version: OpenBSD Status: NEW Severity: normal Priority: P2 Component: ssh-keygen AssignedTo:

On Jan 12, 2009, at 11:10, Edgar Geisler wrote: > my goal is to create a service with multiple threads, each of them > generating IR code and JIT'ing/executing it in their threads and > some threads will share generated code through a code repository... Hi Edgar, Module and Value are unsafe for concurrent access--even disjoint instances thereof. So you'll need to hold a

There may be some solutions?for example class XAPIAN { *static* int InitDatabase(); //for reading only, do not need lock, but if writing use lock int Search(); //safe in one object, do not need lock }; XIPIAN xp[ THREAD_NUM ]; one thread use one object, they use one database. these can be in memory with one database. 2014-06-24 20:48 GMT+08:00 Olly Betts <olly at survex.com>:

I am interested in being able to encode a single Opus stream using several CPU cores. I get a raw audio input and "opusenc" can transcode it at 1200% speed (Raspberry PI 3B+). It saturates a single CPU core, but the other three are idle. Is out there any project to add multithreading options to "opusenc", or something in that line? Looking around, I have found this:

I noticed that the statically linked ogg/vorbis libraries for Windows are multithreaded. I want to link them into a non-multithreaded application, so I'm considering recompiling them to use the non-multithreaded C runtime. Is this feasible, or do libogg and libvorbis rely on multithreading? <p>--- >8 ---- List archives: http://www.xiph.org/archives/ Ogg project homepage:

Hi all, Does anyone know how to determine which file system a disk was formatted with, if fdisk -l doesn't show it? usb-storage: device found at 5 usb-storage: waiting for device to settle before scanning Vendor: Model: Rev: Type: Direct-Access ANSI SCSI revision: 02 sd 7:0:0:0: Attached scsi disk sda sd 7:0:0:0: Attached scsi generic

Hi all, I would like to multithread that script, to detect structure from multilocus genetic data : >library(Geneland) > >geno = read.table("cot966gen_test.txt") #the file is show after >MCMC(geno.dip.codom = geno, varnpop=T, npopmax=20, spatial = F, nit=100000, thinnin=100, path.mcmc="./") >PostProcessChain(path.mcmc="./", nxdom=100, nydom=100,

I was surprised, given the vector-ish nature of R, to see that (according to my CPU meters) there doesn't seem to be any obvious multithreading in R. Are there any plans to change this?